Heating apparatus



E. KGH Zg@ HEATING APPARATUS 2 Sheets-Sheet 1 Fig. 2.

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Filed sepi. 15, 1934 Fgl- 7 14 Wiardi 3, 1936.

Mmch 3, i936. E. KGI 2,032,660

HEATING APPARATUS Filed Sept. 13, 1934 2 Sheets-Sheet. 2

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TTO/Q/VEY Patented Mar. 3, 1936 UNITED STATES PATENT OFFICE Application September 13, 1934, Serial No. 743,824 In Switzerland December 12, 1933 4 Claims.

I have filed an application in Switzerland on the 12th December, 1933 and Germany on the 14th December, 1933.

The present invention relates to improvements in heating apparatus, more particularly apparatus for use with hot water central-heating installations.

'Ihe object of the invention is to provide an expansion vessel for hot water central-heating installations, which serves at the same time as a heating apparatus or radiator.

Hot water central-heating installations usually comprise a considerable number of heating apparatus or radiators and only one expansion vessel, which is usually located. in an upper part of the building and performs normally only the function of compensating for the variations in the watercolumn due to variations in the temperature of the water. As a rule, these expansion vessels are insulated so as to avoid any loss of heat.

'Ihe main feature of the invention is to construct an expansion vessel for use with hot water central-heating installations in such a manner miY that it can serveV the double function of an expansion vessel and a radiator.

Hitherto expansion vessels have been usually made of round or spherical shape, which is the most favourable one as regards resistance against 30. the internal pressure occurring in the vessel. On

the other hand, the usual round or spherical eX- pansion vessels have the disadvantage that they do not utilize well the available space and are entirely unsuitable for use as heating apparatus or radiators.

According to the invention these drawbacks are avoided by making the expansion vessel of rectangular section and generally constructing the expansion vessel in such a manner that it can be simultaneously used as a radiator. For this purpose the walls of the vessel are made of a suitable shape so as to radiate a considerable amount of heat. The long sides of the improved expansion vessel are arranged parallel tov each other and they are given the required resistance against internal pressure by being anchored against each other.

The accompanying drawings show several constructions embodying the features of the invention.

Fig. 1 is a perspective view of one construction.

Fig. 2 is a section on line II-II of Fig. 1.

Fig. 3 shows in section a modied construction of anchoring means, and

Fig. 4 is a top View corresponding to Fig. 3,.

Fig. 5 shows in perspective view another construction of the improved expansion vessel.

Fig. 6 is a cross section on line VI-VI of Fig. 5.

Fig. 7 shows anotherv construction in sectional elevation.

Fig. 8 is a cross section on line VIII-VIII of Fig. 7.

Fig. 9 shows a modified construction having a closed inner vessel, and

Fig. 10 shows a further modification.

Referring first to Figs. 1 to 4, I represents an expansion vessel of substantially rectangular shape, the long sides 1, 8 of which are provided with grooves I4 for the purpose of increasing theV heat radiating surface. Grooves I4 may also be provided in the'small sides 9, I0 of the radiator, as shown in Fig. 1. In the middle portion of the expansion vessel there is provided means for anchoring together the long sides of the vessel. As shown in Fig. 2 the anchoring means comprises plates 2, 2 xed in any suitable manner to the long sides 'I, 8 of the vessel. The plates are hookshaped at their inner edges II so that they engage each other. By the provision of this anchoring means the long sides are given the required resistance against internal pressure and prevented from undue deformation.

AInstead of the hooked plates 2, shown in Fig. 2, L-shaped p1ates3 can be used, as shown in Fig. 3, which are again fixed to the long sides of the expansion vessel and are connected at their inner edges by means of screws 6, one of the plates 3 being, for this purpose, provided with a round hole 4 and the other plate with an elongated hole 5. This construction has the advantage that it provides for a small play in the transverse direction of the vessel. The latter arrangement has the advantage of enabling the anchoring means to be tightened or adjusted as required.

Water is admitted to the expansion vessel through a pipe I5 and discharged from the vessel through a pipe I6, an over-flow pipe I 1 being provided at the top of the vessel.

In the constructions according to Figs. 5 to 8, there is, within the expansion vessel I, an inner vessel I8 which is open at the top and is likewise of rectangular section as shown particularly in Fig. 7. When the Water led into the outer vessel I rises to a sufficient extent, the inner receptacle receives water from the outer vessel. Water overows into the inner vessel I8 from the expansion vessel I through an overflow spout I9. This arrangement has the advantage that the Water rises more rapidly in the outer vessel and that consequently the vessel becomes hot more 2 V i Y 2,032,660

rapidly. Water can be discharged from the inner vessel through pipe 20 and valve 2I.

The inner charging vessel I 8 might, if preferred, be extended up to the top of the outer vessel I and then be provided with an overflow in place of the spout-shaped opening I9. The inner vessel might also be extended right to the bottom of the outer vessel and the admission and discharge pipes might then be suitably re-arranged. It is not essential that the section of the inner vessel should correspond with that of the outer vessel.

In some cases the inner vessel I8 may be anV entirely closed container (see Fig. 9) or the inner vessel may be extended to the top and tothe bot-1 tom of the outer vessel so that the two Vessels have a common top and a co'mmon bottom (see Fig. 10). The vessel I8 may also be replaced by a solid body.

The walls'of the inner and the outer vessel maybe anchored together to increase their resistance to the inner pressure. For this purpose, in the construction shown in Figs. 'l and 8, members 22 of Ll cross section are xed to opposite walls of the two vessels in such a manner that their inner limbs engage. The walls of the inner vessel I8 are reinforced by transverse members 23, 23 of angle section, which are fixed to opposite walls of the inner vessel and have their horizontal limbs connected by screws 24.-

It will be understood that other means Vfor reinforcing the Walls of the containersmay be used within the scope of the invention.

I claim; v

1. An expansion vessel for hot water centralheating installations constructed as a radiator and comprising in` combination: an outer vessel of substantially rectangular cross section having long sides and short sides, the long sides being provided with grooves; an inner displacing body within said outer Vessel; means for anchoring opposite'long sides of the inner displacing body and the outer vessel against each other; means for anchoring the long sides of the inner displacing body against each other; and means for admitting water to the outer vessel, means for discharging Water from the outer vessel, and means for discharging water from the inner displacing body, substantially as described.

2. An expansion vessel for hot water Vcentralheating installations constructed as a radiator and comprising in combination: an outer vessel of substantially rectangular cross section having long sides and short sides, the long sides being provided with grooves; an inner vessel within said outer vessel; means for anchoring opposite long sides of the inner vessel and the outer vessel against each other; means for anchoring the long sides of the inner vessel against each other; and means for admitting water to the outer vessel, means for discharging water from the outer Vessel, and means for discharging Water from the inner vessel, substantially as described.

3. An expansion Vessel for hot water centralheating installations constructed as a radiator and comprising in combination: Yan outer vessel of substantially rectangular cross section having long sides and short sides, the long sides being provided with grooves; an inner vessel Within said outer vessel, said inner vessel being closed at the bottom and open at the top to receive Water rising Within the outer vessel; means for anchoring opposite long sides of the inner vessel and the outer vessel against each other; means for anchoring the long sides of the inner Vessel against each other; and means for admitting water to the outer vessel, means for discharging water from the outer vessel, and means for discharging water from the inner vessel, substantially `as described.

y 4. AnY expansion vessel for hot Water centralheating installations, comprising in combination: an outer vessel of substantially rectangular cross section having grooved long sides, and short sides; said outer Vessel being closed at the bottom and at the top; means for admitting water to said outer vessel; meansV for discharging water from said outer vessel; overilow means associated with said outer vessel; an inner vessel within said outer vessel, said innerl vessel being closed at the bottom and open at the top; means for discharg-v ing water from said inner vessel; means for anchoring opposite long sides of the inner and the' outer walls against each other, said means com'- prising ueshaped members engaging each other with their inner limbs and iixed with their outer limbs to said opposite walls; and means for anchoring the opposite long sides of the inner vessel comprising angle-shaped bars xed to said walls and means for connecting said angle-shaped bars, substantially as described.

EMIL KGI. 

